ML300-gpio

ML300-gpio

[colui77]

hi all,
I'm working with the ML300 platform running the shipped Montavista Linux
(and hw configuration). I need to use the onboard gpio and I found a driv=
er,
the xilinx_gpio, that I have loaded (insmod xilinx_gpio). After insmoding=

the driver it is registered in /dev/xgpio (why is not it loaded in /proc/=

before?) I have tried to use the GPIOs...

cat "111111000000" > /dev/xgpio

I was expecting some leds lighting but nothing at all...
Is there someone experienced with the ml300 gpios? 
Please I need help
Luigi

Re: ML300-gpio

[Andrei Konovalov]

colui77@virgilio.it wrote:
> hi all,
> I'm working with the ML300 platform running the shipped Montavista Linux
> (and hw configuration). I need to use the onboard gpio and I found a driver,
> the xilinx_gpio, that I have loaded (insmod xilinx_gpio). After insmoding
> the driver it is registered in /dev/xgpio (why is not it loaded in /proc/
> before?) I have tried to use the GPIOs...
> 
> cat "111111000000" > /dev/xgpio

You must use ioctl's.
This driver has the same API as IBM OCP GPIO driver.
Please check include/linux/ibm_ocp_gpio.h.

Thanks,
Andrei

> I was expecting some leds lighting but nothing at all...
> Is there someone experienced with the ml300 gpios? 
> Please I need help
> Luigi
> 
> 
> 
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